APPS

Google Slides (Free)Unveiled at Google's I/O developer conference last week, Slides is the official app for Google's PowerPoint-esque presentations software. You can create and edit presentations, working across the app and website, as well as accessing PowerPoint files and inviting colleagues to collaborate on individual presentations.

Osper (Free)Osper is an interesting idea making its debut in the UK: a "money management system" for young people – i.e. under-18s. It's essentially a prepay debit card, funded by parents, with the app used by both children and parents to keep tabs on balances and transactions. Although a fair few teenagers may balk at the idea of their parents seeing an itemisation of their spending...

Udacity - Learn Programming (Free)Udacity is one of the online learning startups getting a lot of buzz in the US and elsewhere, with this its first Android app. The focus is on learning programming skills in HTML, CSS, JavaScript, Python and other languages, with a host of classes to then push on: from applied cryptography through to robotics AI.

Yahoo Aviate Launcher (Free)Available in beta for a while, Aviate is now out and proud in the Google Play store, as the latest "launcher" app trying to smarten up Android users' homescreens. The twist here is that it claims to "adapt" to your daily behaviour, trying to show you the most relevant apps to your time and activity for faster access. The proof will come a few months down the line when it's adapted to you well (or not) but early adopters seem impressed.

Nudge (Free)Nudge is the latest health-tracking app, although in this case, it aggregates data from others – from Fitbit gadgets to the Moves and RunKeeper apps. Its aim: to give you an overall "health score" while comparing your quantified self to friends. Well, friends who are also on Nudge, anyway.

Panic Button (Free)Hopefully, most people reading this article won't ever find themselves in a position dangerous enough to require this app. It's from Amnesty International, mainly for its activists as well as journalists around the world who might suddenly be in danger and need to let friends or colleagues know. The app sends location updates to the user's chosen contacts, hiding itself as best as possible so an attacker can't disable it.

AlertsPro (£1.43 + IAP)More alerts, but these are of the meteorological kind. This app aims to keep you posted on severe weather coming your way, from blizzards to monster thunderstorms. The app promises up to 48 hours advance notice, with a simple system of colour-grading to indicate severity.

SpeakingPhoto (Free)SpeakingPhoto does what it says on the tin: you take a photo, then record a voice note to go with it, and then share to various social networks with up to eight pics and notes at a time. There's also a global gallery so you can see what other people have been spotting and sharing.

YouTube Creator Studio (Free)Finally, another app with a very specific audience: people who run channels on YouTube. It's a simple, useful app for keeping an eye on your stats, answering comments from viewers, and managing other aspects of your channel. An essential tool for YouTubers.

GAMES

The Walking Dead: Season Two (Free + IAP)I can't speak highly enough of Telltale Games' work with The Walking Dead on mobile: it's made gripping, atmospheric classics. This is the second "season" – it uses TV lingo – of the zombie games, with one episode available for free, another two available as in-app purchases, and two more coming later in the year. A rare zombie game where character and plot development are as important as gory action.

Wartune: Hall of Heroes (Free + IAP)I was once given a demo of Wartune at a press event held by publisher Kabam, by someone who'd unlocked pretty much everything in this massively-multiplayer game that blends battles with city-building. It looked mind-bogglingly baffling, but playing from the start opens up its features at a manageable pace. It's still hardcore, but looks worth the investment in time (and, yes, in in-app purchases should you so desire).

Eliss Infinity (£1.76)Eliss is brilliant: a puzzle game that's perfect for modern multi-touch devices, as you fuse and split planets to match them. Eliss Infinity is its first appearance on Android, complete with a new "endless" mode, a revamped version of the iOS-only original, and more polish. An excellent introduction to one of the best mobile time-killers.

Spy vs Spy (£1.99 + IAP)As someone who wasted countless hours on the Commodore 64 version of Spy vs Spy back in the 1980s, I'm quite excited about its revival for modern smartphones and tablets. If you're new to it, the game focuses on a trap-laden battle between two enemy spies, sneaking around embassies trying to off one another. In-app purchases may raise an eyebrow, but the core game remains great fun.

Kim Kardashian: Hollywood (Free + IAP)Once upon a time, Paris Hilton had her own mobile game: she even turned up to the E3 games industry show to promote it (while, er, forgetting its name). Several years later, Kim Kardashian is getting in on the act, with a fashion-themed freemium game that gets you wandering around LA trying to become a celebrity – occasionally running into Kim herself. Actually pretty fun, regardless of whether you're a fan or not.

Wave Wave (£1.09)There's a demand out there for viciously-difficult "twitch" arcade games – Super Hexagon being one of the prime examples. Wave Wave fits into this trend, and doesn't suffer in the comparison with Super Hexagon. It sees you guiding a line through a frequently-rotating maze by tap-holding on the screen: Tron meets Flappy Bird, but not for the faint of heart.

Monsters Ate My Birthday Cake (£1.76)This game's by Cartoon Network: the latest in a burst of mobile gaming from the TV channel. It's a puzzle game populated by colourful monsters, each with their own special powers to help you navigate through levels – pushing lots of blocks as you go. It's very addictive.

The Rhythm of Fighters (£0.69 + IAP)Here's a genre to conjure with: "Fighting x Music". This game comes from SNK Playmore, working in elements of its famed beat 'em up series The King of Fighters, with rhythm-based musical gameplay as you tap in time to tunes to make your character fight.

The World Ends With You (£12.99)Yep, £12.99. Publisher Square Enix isn't one to undervalue its classic games on mobile devices, so roleplaying game The World Ends With You – originally released for Nintendo's SD in 2007-8 – isn't cheap. It is, however, very good: an RPG based in modern-day Tokyo, with impressive graphics and lots to explore.

The Ministry of Silly Walks (£0.99)And now for something completely diff... Well, you see where I'm heading. This is the first official Monty Python game for Android: an endless runner where the running is silly walking based on one of the comedy troupe's most famous sketches. John Cleese provides voice acting, while the rag-doll physics are good for a few laughs.

Those are our picks, but what have you been enjoying on Android this week? Post your recommendations (or feedback on these) in the comments section.